Home / 12,631.39-17,432.12-6,966.15

Finding the Fourth Proportional to 12,631.39, 17,432.12 and 6,966.15

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Solution

The fourth proportional to 12,631.39, 17,432.12 and 6,966.15 is: 9,613.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.39 : 17,432.12 = 6,966.15 : x
  2. Step 2: Convert to fraction form
    12,631.39/17,432.12 = 6,966.15/x
  3. Step 3: Cross multiply
    12,631.39x = 17,432.12 × 6,966.15
  4. Step 4: Simplify right side
    12,631.39x = 121,434,783.43
  5. Step 5: Solve for x
    x = 121,434,783.43/12,631.39
  6. Step 6: Final answer
    x = 9,613.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.